Pivoting vise mount and improved jig



July 31, 1962 M. T. KINNE PIvoTINC vIsE MOUNT AND IMPRovI-:D JIG Filed Dec. 23, 1959 FIQJ.

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July 31, 1962 M. T. KINNE '3,047,285

' PIvoTING VISE MOUNT AND IMPROVED JIG Filed Dec. 23, 1959 5 Sheets-Sheet 2 Flq. 20 4 n July 31, 1962 M. T. KINNE 3,047,286

PIVOTING vIsE MOUNT AND IMPROVED JIG Filed Dec. 23, 1959 v 5 Sheets-Sheet 5 United States Patent Filed Dec. 23, 1959, Ser. No. 861,493 1 Claim. (Cl. 269 45) This invention relates to an adjustable,-pivotal mounting for a chain type vise, or similar, combinedwith a built-in, improved, adjustable jig; which combination provides a new and 'very practical -use for almost any chain type pipe vise that can be mounted thereon, or a means for eflicient soil pipe fabrication, welded steel pipe fabrication, copper pipe fabrication, or other construction fabrication. The improvements onthe jig contained herein are such 'that the jig is capable of centering, and holding work in the correct position forjointing to workfheld in a vise properly mounted hereon, regardless of any variation of the angle formed by the juncture of the work held in the jig, with respectto the position of the work which is held in the vise. Further improvements in the jig contained herein, resultuinproviding a device which is adaptable for mounting on any ilat surface, and which becomes-Hat for storage or hauling, or for attachinglegs for portable use.

In theA drawings- FIGURE 1 is an elevation of the adjustable vise mount containing the attached, and improved -jig of this invention, -showing same with a vise attached, and in one of many operating positions.

FIGURE 2 is a plan view of the'device in'its'horizontal position.

FIGURE 3 is an enlarged detail on the broken line 3 3 of FIGURE 2, looking in the direction indicated.

FIGURE 4 is an enlarged section on theline 4 4 of FIGURE 3, looking in the direction indicated by the arrows.

FIGURE 5 is an enlarged section on the line k5 5 of FIGURE 4, looking in the direction indicated.

FIGURE 6` is an enlarged section on the line 6 6 of FIGURE l, looking in the direction indicated bythe arrows.

FIGURE 7 is a plan view on the line 7 7 of FIG- URE 3, looking in the direction indicated by the arrows.

FIGURE 8 is an enlarged section on the broken line 8 8 of FIGURE l, looking in the direction indicated by the arrows.

FIGURE 9 is an enlarged detail on the broken line 9 9 of FIGURE 1, looking in the direction indicated by the arrows.

FIGURE `l0 is a -detail view on the line '10 10' of FIG- URE 8, looking in the direction indicated by the arrows.

FIGURE ll is sectional view on the line 11-11 of FIGURE 9, looking in the direction indicated.

FIGURE 12 is a sectional view on the line 12-12 of FIGURE ll, looking in the direction indicated by the arrows.

As shown in the drawings The reference numeral 13 indicates the table element of this invention, which is adaptable to mounting on any llat surface, or on detachable legs, and on this part are mounted in the required manner and position, the other important parts of this invention.

The pivoting vise mount, designated by reference numeral '14, is shown in FIGURE l in a 45 operating position. FIGURE 2 shows this vise mount in an optional horizontal operating position, also this vise mount can be held in a vertical operating position as best shown by vthe dotted portion of FIGURE 4, this illustration also shows how any operating position from horizontal to vertical is attainable with this vise mounting. By reference ICC to FIG. 3 of the drawings it can be noted that the vise mount 14 is actually the mid section of the trunnion 15, modied to provide a -mountingsurfacefor a vise, and FIG. 4 shows'howthe trunnion15 is retained onrforward extensions on each-sident the table element 13 by'a hand operated lset screw 20, and-the parts 19, 4and19, which assembly mounted on'top of the forward extensions of 4each si-de of the table element by^ the cap screws .-19 form complete hand operated clamps-in which the trunnion.1'5 may turn when these clamps are loosened. FIG- URES 2 and 3 illustrate how `thesehand operated clamp .assemblies hold the opposite ends of the trunnion15 in a position so the longitudinal axis at the sectional center of the trunnion 15 is parallel with the upper surface and the front face of the table element'13. v

Reference numerals 16, shown in FIGURES l and 2 of the-drawings indicate a chain vise which is not apart of this invention but is shown in these drawings -asa necessary attachmentto this invention.

.In`FIG. 3 it Vcan be noted that the length of the'trunnionslS which is exposed between the two forward extensions ofthe 'table element'13`is intended tobeadequate for the mounting thereon of a chain type pipe vise or similar in .a manner which allows `the center of the width of the pipe .gripping surface of `said vise to be common with the longitudinal vertical` center plane ofthe table element 13, for the reason that all work to be held in thejig which will be included on `this table element will be centered to vthis same longitudinal ver-tical center plane of the table element.

As shown in FIGURE 4, the lugs 419 and 19 provide a bearing'in which the trunnion can turn while'the trunnion is being adjusted to the desired operating position, vand also'that a positive clamping and holding action will occur when the upper portions of -19-and 19 are moved toward each other.

When it is desiredto lock the trunnion in an adjusted position either or both of the hand operated clamping screws, reference nu-merals 20 in FIGURES 3 and 4, may be turned clockwise. In FIGURE 4, note that the clamping screw 20 passes through a hole in the forward lug y19, and screws into the tapped boss of 19', the thrusting shoulder on the clamp screw `20 comes against the forward llug 19, and further turning of the clamping screw results in a firm clamping action of 19 and 19 about the trunnion 15, thus holding the same firmly in position.

There is alsov provided on the ltable element of this invention a'sturdy latch plate with which the vise on the trunnion can-be locked into the horizontal operating position which restores the chain vise which is mounted Ithereon to al1-ofthe uses for which the chain vise was originally intended. This latch plate is designated by the reference numeral 17, and is shown held to the table element in the locking position by the cap screw l17 in FIG- URE 4. IFIGURE 3 shows how the shape of the table element is designed to for-m side guides for this latch plate. FIGURE 7 is a plan view of the latch plate, and shows how thisplate is mounted -with a cap screw through an elongated slot in the llatchplate so that by loosening the cap screw, the latch may be m'oved to either open or locking position, after which the cap screw may again be tightened.

It here becomes necessary to make Ia cross reference to a prior patent application under the title of Adjustable Vise Stand and I ig, Sen'al'Number 704,692, led December23, 1957, of which I am the sole inventor.

'The purpose and use of the jig assembly ofthese two inventions are similar, but Vthey are diiferent, the prior application is pertaining to -a combination of an adjustable vise with a jig, whi-le in Athis case, a greatly improved jig is being combined with a continuously adjustable mounting fora chain vise, and in this 'case itis my intention Yto specify these similar features in a comparative manner, and in this application for patent I shall attempt to `make claim only for the obvious improvements.

The jig assembly of this invention is comprised of three basic parts; the aligning bar, reference number 21, FIG- URES l and 2, the aligning bar brace, reference numeral 22, FIGURE l, and the work centering and holding assembly of the jig, which is composed of the parts designated by the reference numerals 25, 26, 27, and 28, and shown in FIGURES l and 2, and in detail in FIGURES 8 and 9.

The aligning bar 21, has a length, a flat front surface, two flat sides which extend under toward the center of the width so that a cross section of the aligning bar would resemble a rectangle with the center of one long side cut away, as illustrated in FIG. 5, and contains a bore near one end which is in the transverse center, and is perpendicular to the plane of the sides of the aligning bar. A pivot pin through this bore and through perpendicular lugs, or similar, included on the upper surface of the table element, pivotably retains the aligning bar 21 to the table element 13, so the pivot pin 21 is perpendicular to the longitudinal vertical center plane of the table element, and the center of the width of the aligning bar is common with the same longitudinal vertical center plane, this assembly is illustrated in a sectional view in FIG. 5.

A sliding part 23, in FIG. 9, is slidably retained on the bottom side of the aligning bar 21, is provided with a threaded bore in a position to receive a hand operated set screw 24, which can be tightened against the under side of the aligning bar to hold the aligning bar in a desired position. A slot is centered to the width of this slide on its lower end and the slot provided with fiat lugs at each side of the slot so the outer surface of these lugs are parallel with the sides of the aligning bar, and a bore through the center of the side of these lugs is perpendicular to the plane of the sides of the lugs and a counter sunk machine screw 22 FIG. 9 is provided to pivotably retain one end of the aligning bar brace 22, which is in the form of a length of at bar, with a bore through its sides near each end, one end held between the lugs on the slide by said machine screw and the opposite end is pivotally attached to the rear of the table element between extended lugs on the rear edge of the table element 13, details of the junction of the aligning bar brace to the slide and the aligning bar are shown in FIGURES 9, l1, and l2, the junction of the aligning bar brace to the table element is shown in FIGURE l, and in a sectional detail in FIGURE 6. At no time in the use of the jig, through its range of operating positions does this brace bar extend below the bottom surface of the table element, this is an obvious improvement in that the device is adaptable for mounting on any at surface. Another advantage and improvement is that here is a device which can be handled and stored las a at object, while the prior jig is bothered by an aligning bar brace which protrudes below its table element, also the jig position lock on the prior jig -was located at the rear center of the table element while on this new improved jig it is through the sliding part which connects the upper part of the aligning bar brace to the aligning bar, and the hand operated set screw in this position is `more accessible.

The aligning bar, 21, is provided with a slide 25, as shown in FIG. 8, which slide has a cross section shape which is similar to the cross section of the aligning bar 21, but large enough to slide freely over the aligning bar, and this slide is provided with a threaded bore through one side, in which a hand operated set screw 26, FIGS. 8. and 10, may be turned against the side of the aligning bar to hold the slide in a desired position. The upper surface of this slide 25, includes equal outward extensions on each side the ends of which form brackets which are perpendicular in relation to the upper plane of the aligning bar 21, and between said brackets in pivotally mounted the work centering and holding part 27, FIG. 8

illustrates how the work centering and holding part 27, is pivotally held in place by the bolts 25' so the center axis of this pivot perpendicularly intersects the longitudinal vertical center plane of the table element, and the pivoting of this part 27 allows the proper centering of the work, regardless of the relative angle of the work with respect to the position of the aligning bar of the jig. Here is another improvement over the prior jig, on which the work holding part is in the form of a rigid V block extending at a right angle from the jig arm, and is consequently limited in its centering ability, to work which is nearly parallel in its relation to the position of the jig arm.

In FIGURE 8 of the drawings is shown the provision for holding the work in this jig; a suitable link chain 23, is linked to the eye of an eye-bolt 30, which eye-bolt is passed through a loose hole in a protruding end provided at one front end of the `work centering part, and through a compression spring of a proper tension 29, then compressed while a washer and a self locking nut are made on the end of the eye-bolt, the chain can now be pulled snug around the work and a link of the chain inserted in a slot provided on an extension on the other front edge of the work holding part.

It will be evident that herein is provided a relatively novel and practical means of increasing the general usefulness of almost any chain vise, to include its use as an efficient fabricating vise, useful for farbicating assemblies lof soil pipe and ttings, weld fabrication of steel pipe and fittings, the fabrication of copper pipe and fittings, and other construction fabrication, and with the provision of a means for locking the vise mount, with a vise mounted thereon in a horizontal position, the chain vise can be quickly restored to its originally intended uses, and without removing the vise from this mount. A further advantage contained in this device is its comparatively light weight and its ability to fold flat, which makes it adaptable for hauling, storing, or mounting on any at surface, or the attaching of legs for hand portable uses. The improvements in the jig contained herein provide a wider range of uses for this device and can contribute much to the eiciency and accuracy of the work performed with its use. Here then is a unique, versatile, and useful invention.

I `am aware that 'many changes may be made, and numerous details of construction varied throughout a wide range without departing from the principles of this invention, and I, therefore do not propose limiting the patent granted hereon otherwise than as necessitated by the prior art.

I claim as my invention:

A device of the class described, in which a table element which has a length, a straight front, and a rear edge, and is provided with a substantial forward extension on each side of the straight front, on the upper surface, adjacent to the forward end of each said substantial forward extension is provided a hand operated clamp, and said clamps pivotally support opposite ends of a trunnion, Iand that part of said trunnion which is ybetween the said substantial forward extensions of said table element having a suitable vise mounting surface thereon to form a pivoting vise mount; and in which the aligning bar of a work holding jig which has a length, a width and two sides, the upper surface flat and joined to the sides at a angle, the sides are tiat yand joined at their bottom edge to a short extension inward, which inward extension forms a 90 angle at its junction with the side, said aligning bar is 4pivotally supported at one end on the upper surface of said table element and the center of the width of the aligning bar is common with the longitudinal vertical center plane of the table element, said aligning bar is provided with a sliding part retained to the under side of the aligning bar by said inward extensions at the bottom edge of the sides, a threaded bore through this slide, a hand operated set screw in `said threaded bore where it can bear against the center of the width of the under side of the aligning bar, an aligning bar brace pivotally mounted at one end on said ysliding part, the opposite end of said aligning bar brace lpivotally retained at the yrear edge of the table element, and the longitudinal pivoting axes of the pivots on the yaligning bar brace, the aligning bar, and the pivoting vise mount are substantially parallel; a support slidably retained on the sides of the aligning bar, and one side of said support having a threaded bore, and `a hand operated set screw in the bore where it can engage against a side of the aligning bar, the top `of said sliding 'support provided with lbrackets at each side, `and between said brackets is pivotally mounted the Work centering and holding part of the jig and the longitudinal axis of this pivot is substantially parallel with the pivoting axis of the pivoting vise mount, two tlat extensions provided at the sides of the Work centering and holding part, on one at extension is mounted the threaded end `of an eye-bolt through a loose hole in said one flat extension7 a spring ceived in a slot Vformed in the other flat extension.

References Cited in the tile of this patent UNITED STATES PATENTS 568,543 Parks Sept. 29, 1896 1,393,125 Henon Oct. 11, 1921 1,603,307 Anderson Oct. 19, 1926 1,667,616 Wright et al Apr. 24, 1928 2,546,458 Launder Mar. 27, 1951 2,628,397 Olson Feb. 17, 1953 2,984,132 Renz May 16, 1961 FOREIGN PATENTS 12,205 Great Britain May 3lI 1898 

